Description

Direct Yellow 119 is a high-performance, water-soluble azo dye belonging to the direct dye class, widely recognized for its bright and stable yellow hue. Its primary value lies in its excellent substantivity for cellulosic fibers, offering good wash and light fastness properties, which is critical for consistent coloration in demanding industrial processes. This dye is essential for manufacturers in the textile, paper, and leather industries seeking reliable and efficient coloring solutions for natural fibers.

Application

• Textile Dyeing: Primary application for dyeing cotton, viscose, rayon, and other cellulosic fibers, often used in exhaust and continuous dyeing processes.
• Paper Coloring: Used for tinting and dyeing paper pulp, providing a uniform yellow color for specialty papers, tissues, and packaging materials.
• Leather Finishing: Employed in the dyeing of leather goods, offering good penetration and color yield on tanned hides.
• Ink Formulation: A colorant component in the manufacture of certain types of inks, including those for flexographic and inkjet printing.
• Biological Staining: Potential use as a histological stain in laboratory settings for microscopic analysis.

Basic Information

Product Name	Direct Yellow 119
CAS No.	12222-62-7
Molecular Formula	C36H28N8Na4O16S4
Molecular Weight	1085.0 g/mol (approx.)
Synonyms	Direct Fast Yellow 5G; C.I. Direct Yellow 119; Direct Yellow 5G; Pontamine Fast Yellow 5G; Sirius Supra Yellow 5G; Aizen Primula Yellow 5GH; Atul Direct Fast Yellow 5G; Benzo Fast Yellow 5G
EINECS	Contact for details

Quality Control

Our Direct Yellow 119 is manufactured under a stringent quality management system to ensure batch-to-batch consistency and performance. Each lot is tested against key parameters including color strength, shade, solubility, and impurity profile to meet industry specifications. A Certificate of Analysis (COA) detailing purity, physical properties, and conformance is provided with every shipment to support your quality assurance protocols.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). Keep away from strong oxidizing agents. The product is hygroscopic (moisture-sensitive); ensure the container is sealed after each use to prevent moisture absorption and caking.

Specification

Item	Specification
Appearance	Yellow to Brownish-Yellow Powder
Identification (IR)	Conforms to Standard
Color Strength	100 ± 3% (vs. Standard)
Moisture Content	≤ 5.0%
Water Insoluble Matter	≤ 0.5%
pH (1% Solution)	6.0 - 8.0
Shade	Within Agreed Limits
Fastness Properties	Contact for details

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.